News Release: NREL Director Announces His Retirement

March 19, 2015

Dr. Dan E. Arvizu today announced that
he intends to retire at the end of September
from his role as the Director and Chief Executive of the Energy Department's (DOE)
National Renewable Energy Laboratory (NREL) in Golden, Colorado.

Arvizu
also expects to retire as President of Alliance for Sustainable Energy, LLC, at
the end of September. Alliance manages
NREL on behalf of the Energy Department. Arvizu has held the role of laboratory director
at NREL since January
2005.

"NREL's work is critical to DOE's mission of supporting
American leadership in a global clean energy economy. Under Dan Arvizu's
guidance, NREL has become world renowned for clean energy advancement and
cutting-edge science," Energy Secretary Ernest Moniz said. "Just one example of Dan's
focus on driving
technology innovation is the recently opened Energy Systems Integration
Facility, which is addressing how new sources of energy can be integrated into
our electric grid. Under Dan's guidance, we have also seen a successful push to
commercialize cutting-edge technologies, many of which are already having a
real market impact. Dan is leaving a deep legacy of leadership and innovation,
he will be missed."

"Dan has had a tremendous impact
on the success and growth of the laboratory, and we are grateful for his
visionary leadership on behalf of both NREL and the nation," said Ron
Townsend, Alliance Board Chair and Battelle Executive Vice President for Global Laboratory
Operations. "Under Dan's
leadership the laboratory has established itself as the world's leader in
renewable energy research and development."

During Arvizu's 10-year tenure, NREL's
research portfolio has nearly doubled, despite increasingly tight federal
budgets. High-performance computing, electricity grid integration, and fundamental
research in materials and biological science have emerged to complement major
technology research and development programs in renewable generation, renewable
fuels, and buildings energy efficiency. The stature and value of the
laboratory's leading energy analysis capabilities have expanded as NREL has examined
increasingly complex issues. Under
Arvizu's leadership, NREL has markedly increased commercial and public
partnerships through which the knowledge and knowhow of the laboratory have
direct impact in the marketplace.

As director, Arvizu secured funding for
and oversaw the transformation of the NREL's main campus in Golden to a model
of sustainability, including the award-winning user facility, the Energy
Systems Integration Facility (ESIF) which added a unique national experimental
capability to support public- and private-sector research and development that
will accelerate the integration of renewable energy and energy efficiency
technologies into legacy energy systems.

"Dan has accomplished tremendous
things during his tenure, guiding the lab to higher levels of scientific and
operational performance, and substantially improving NREL's infrastructure. His
leadership and friendship will be sorely missed, but he will be leaving the lab
in an excellent position to move forward," said Tom Fleener, Alliance Board Vice Chairman
and CFO of
MRIGlobal.

Townsend and Fleener said Alliance will
begin a national search for a successor immediately.

"It has been a privilege to work with
the very talented and dedicated staff at NREL," Arvizu said. "I have no
doubt the laboratory will continue to be an innovation leader and primary
source of technical knowledge and insights that impact the transformation of
global energy systems."

In addition to his role as NREL
director, Arvizu was appointed by two successive U.S. presidents to serve
six-year terms on the National Science Board, which governs the National
Science Foundation and advises the president and Congress on science policy. Arvizu
presently serves as chairman. He is a fellow of the National Academy of
Engineering and the National Academy of Public Administration. Arvizu serves on Secretary
of Energy Ernest Moniz's
Energy Policy Council and on the leadership council of the National Laboratory
Directors Council. Arvizu also serves on
a number of other boards, panels and advisory committees, including the
American Council on Renewable Energy Advisory Board, the Singapore
International Advisory Panel on Energy, the Colorado Renewable Energy Authority
Board of Directors, the Stanford Precourt Institute for Energy Advisory Council,
and the State Farm Mutual Board of Directors.

Before joining NREL, Arvizu was a chief
technology officer with CH2M HILL Companies, Ltd. Previously, he was an
executive with Sandia National Laboratories in Albuquerque, New Mexico, leading
organizations in energy technologies, material science, and technology
commercialization. He started his career and spent four years at AT&T Bell
Telephone Laboratories.

Arvizu earned a bachelor of science degree
in mechanical engineering from New Mexico State University, and a master's
degree and Ph.D. in mechanical engineering from Stanford University.

NREL is the U.S. Department of Energy's
primary national laboratory for renewable energy and energy efficiency research
and development. NREL is operated for the Energy Department by the Alliance for
Sustainable Energy, LLC.